Jeep Grand Cherokee

1993-1999 of release

Repair and operation of the car



Jeep Grand Cherokee
+ Cars of the Jeep Grand Cherokee brand
+ Settings and routine maintenance
- Line six-cylinder engine
   General information
   Repair procedures which implementation is possible without extraction of the engine from the car
   Reduction in the provision of VMT of a step of compression of the piston of the first cylinder
   Removal and installation of a cover of a head of cylinders
   Removal, check of a state and installation of yokes and bars of pushers
   Replacement of valvate springs, their plates and maslootrazhatelny caps
   Removal and installation of the inlet pipeline / final collector
   Removal and installation of a head of cylinders
   Replacement of a forward epiploon of a bent shaft
   Check of a state, removal and installation of a cover of a distributive chain, chain and its asterisks
   Removal, check of a state and installation of the camshaft, bearings and hydraulic pushers
   Removal and installation of the pallet of a case
   Removal, check of a state and installation of the oil pump
   Removal and installation of a flywheel / driving disk
   Replacement of a back epiploon of the crankshaft
   Check of a state and replacement of rubber pillows of support of the engine
+ V8 engine
+ Procedures of the general and capital repairs of the engine
+ Cooling systems, heating and air conditioning
+ A power supply system and production of the fulfilled gases
+ System of electric equipment of the engine
+ Systems of decrease in toxicity of the fulfilled gases and engine management
+ Manual box of gear shifting
+ Automatic transmission
+ Transfer case
+ Coupling and transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
+ System of onboard electric equipment
+ Governing bodies and methods of operation



Removal, check of a state and installation of yokes and bars of pushers

Removal

 PERFORMANCE ORDER

  1. Uncover a head of cylinders (The section Removal and installation of a cover of a head of cylinders).
  2. Since a forward part of a head of cylinders, weaken in pairs bolts of fastening of yokes.
  1. In pairs weaken bolts of yokes of all inlet and final valves on 1/4 turns.
  1. Remove yokes, bridge brackets and spherical support of yokes, put each of components in the separate, specially marked in relation to the valve capacity together with the bolts. Bridge brackets can be established at assembly in any situation.

Components of yokes

And — the Bolt
In — the Bridge bracket
With — the Spherical support
D — the Yoke
  1. Remove bars of pushers and put them separately that at assembly the warranty of their installation for the former places was had.
  1. For the ordered storage of bars of pushers it is the most convenient to make a special template of a cardboard box.

Check of a state

 PERFORMANCE ORDER

  1. Check each of yokes for existence of signs of wear, cracks and other damages, paying special attention to the working surfaces contacting to bars of pushers and cores of valves. Examine saddles of spherical support in each of yokes and a surface of support. In case of detection of the protertost resulting from fatigue deformation of cracks, traces of uneven wear or damages replace yokes together with support.
  2. Make sure of passability of maslopodayushchy openings in end faces of bars of pushers and yokes.
  3. Check end faces of bars of pushers for existence of cracks and traces of excessive wear. Take for a drive each of bars on a flat surface (a large splinter of a windowpane) for identification of signs of a bend.

Installation

 PERFORMANCE ORDER

  1. Grease the lower end faces of each of bars of pushers with pure motive oil or assembly motive lubricant and establish bars on the former places. Make sure that bars completely "sat down" in nests of the pushers.
  2. Bring the piston of the first cylinder into the provision of VMT of a step of compression (The section Reduction in the provision of VMT of a step of compression of the piston of the first cylinder).
  3. Before establishing on places of a yoke grease end faces of cores of valves and the top end faces of bars of pushers with pure motive oil or assembly motive lubricant.
  4. In order to avoid damage of contact surfaces during the first start of the engine until rise in oil pressure oil spherical support of yokes pure motive or assembly motive lubricant. Establish yokes, their spherical support, bridge brackets and bolts on the former places. Tighten bolts with the required effort.
  5. Establish into place a cover of a head of cylinders (The section Removal and installation of a cover of a head of cylinders).
  6. Start the engine, listen to the unusual sounds made by the valvate mechanism and check a joint of a cover of a head of cylinders with a head for existence of traces of leak of oil.